Hoist for anchor



guly 22, 1958 L. .upumv 2,844,119

HO'IST FOR ANCHOR Filed Jan. 20, 1956 INVENTOR LESTER J DUGAN ATTORNEYSUflitd stats Pat l atente'd July 22,1958

I-IOIST FOR ANCHOR Lester J. Dugan, Washington, D. C.

Application January 20, 1956, Serial No. 560,317

4 Claims. (Cl. 114210) The present invention relates to a device forraising and lowering anchors on small craft.

The principal object of the invention is to provide means whereby ananchor may be lowered from the deck of a small boat or raised theretoautomatically from a remote point.

A further object of the invention is to provide a compact device forraising and lowering the anchor of a small craft which will insureproper positioning of the anchor on deck at all times after the same hasbeen raised.

Other objects and features of novelty of the invention will be madeapparent by the following description and drawings, which, it will beunderstood are only illustrative of the invention and impose nolimitation thereon not imposed by the appended claims.

Referring to the drawings in which similar reference numerals refer tolike parts:

Fig. 1 is a perspective view of my improved anchor raising and loweringdevice mounted on the deck of a small craft;

Fig. 2 is a top plan view of my device in extended position; and

Fig. 3 is a side view showing the device in extended position.

Referring more particularly to the drawing, the novel device of thepresent invention is adapted to be mounted on the deck of a small craftC and includes an elongated end of anchor rope 40 is attached to drum 34and extends downwardly around wheel 36, upwardly over winch drum 34,through channel slot 42 in the end of arm 10, through one or more eyemembers 44 positioned in the edge of arm 12 to the anchor 46 which, inthe normal position is positioned on 'the upper surface of arm 12. Astop 48 is aflixed to the anchor rope a short distance above the anchorfor a purpose which will be described hereinafter. Guide pins 50 areprovided on the upper surface of arm 12 for the anchor rope 40.

plate 2 secured to the deck, the outer end of which is adjacent theouter edge of the deck.

The anchor is lowered through movement of davit arms 10 and 12 which arepivotally mounted, respectively, on the end of plate 2 by hinges 14, 16.The arms 10, 12 in their normal anchor-up position overlie plate 2 andthe anchor A rests on arm 12, as shown in Fig. 1.

The novel means for causing movement of arms 10, 12 to lower the anchorcomprise power devices in the form of torsion springs 18, 20 mounted inaligned relationship on a shaft 22 which extends between vertical plates24 mounted on opposite sides of the end of deck plate 2. One end 26 ofspring 18 engages the lower surface of arm 10 while an end 28 of spring20 engages the lower surface of arm 12. The springs are maintained undertension when the arms 10, 12 are in their normal position on the deckand the arms are biased outwardly by the springs when the arms arereleased.

Means are provided for limiting the movement of arm 10 beyond a positionperpendicular to the deck, which means comprises the rope or chain 29aflixed to arm 10 and deck plate 2, as shown in Fig. 3.

Novel means, including the use of the anchor rope, are provided formoving the arms 10, 12 from their outermost position to their normal,anchor-up position. Such means include angle brackets 30, 32 which aremounted on opposite sides of the inner end of plate 2 and a winch drum34 positioned adjacent the upperends of the brackets and which extendsbetween the brackets. A pulley wheel 36 is aflixed to the end of plate 2below drum 34. One

Means are provided for rotating the drum 34, which means may include anelectric motor connected directly to the drum or positioned remotelytherefrom and operating the drum through a belt drive or other suitablemeans. If desired, a crank handle may be provided to rotate the shaftmanually.

In the use of the present invention, when the craft is anchored arm 12extends in an outboard position, being parallel to the water, 'while arm10 is perpendicular to the deck of the craft, its position being solimited by rope 29. In this position, the springs 18, 20 are not undertension. When it is desired to raise the anchor the Winch drum 34 isrotated by means of the electric motor or hand crank, controlled by theboat operator. Sufficient anchor line is Wound on the winch drum tobring the stop element 48 to the eye 44 afiixed on the arm 12, acontinuation of the winding causing the arm to swing upwardly and towardthe boat, loading the spring 20. When the arm 12 is in a perpendicularposition, it will be positioned adjacent arm 10 and on continuation ofthe winding operation, the two arms will be forced rotatively to aposition parallel with the plate 2. During this phase of the operation,spring 18 is also being loaded. In this position the anchor is lying onthe upper surface of arm 12 with the shank thereof between guide pins50. Reverse movement of the arms by the spring bias is prevented by thenormal drag in the electric motor or by suitable ratchet means, notshown.

When it is desired to lower the anchor, the motor is reversed or theratchet released thereby relieving the tautness in the anchor line, thesprings 18, 20 then forcing the arms upwardly and outwardly, the arm 10being limited in its travel to a perpendicular position by means of rope29, while arm 12 continues its outward travel until it is parallel tothe water, the anchor rope continuing to unwind until the anchor is onthe bottom. In the form of the invention disclosed, movement of arm 12beyond the horizontal is limited by the abutment of one end thereof withone end of plate 2, as shown in Fig. 3. However, other means could beemployed, such as a rope or cable similar to the rope 29 which limitsmovement of plate 10.

It should be understood that the springs 18, 20 could be replaced byhydraulically or pneumatically operated pistons, if desired.

While one form which the invention may take has been described andillustrated, it will be apparent to those skilled in the art that otherembodiments, as well as modifications thereof, may be made withoutdeparting in any way from the spirit or scope of the invention, for thelimits of which reference must be had to the appended claims.

What is claimed is: v

1. An anchor hoist adapted to be mounted on the deck of a boat adjacentthe edge thereof including a first davit arm pivotally mounted on thedeck, a second davit arm pivotally mounted on the deck and overlyingsaid first davit arm, means for moving said second davit arm outboard ofsaid deck through an arc of degrees to a horizontal position, means formoving said first davit arm from the deck to a vertical position, awinch drum positioned adjacent the inboard ends of said arms in theiroverlying position, flexible means having one end attached to the Winchdrum and being guided over the free ends of the two davit arms, theother end of said flexible means being attached to the anchor and meansfor Winding the flexible means on said drum to cause the positioning ofthe said second arm and the anchor on the deck after said first andsecond arms have been moved to their respective vertical and horizontalpositions.

2. An anchor hoist as called for in claim 1 in which the means formoving the said davit arms to be raised from the deck comprise torsionsprings mounted in aligned relationship.

3. An anchor hoist as called for in claim 2, in which the torsionspringsare maintained under tension When said arms are in their normalposition on the deck.

4. An anchor hoist as called for in claim 1 comprising, in addition,means positioned on said second'davit arm for positioning the anchorafter said anchor has been raised.

No references cited.

